- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 5/04 - Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
Patent holdings for IPC class F27B 5/04
Total number of patents in this class: 141
10-year publication summary
|
10
|
11
|
15
|
10
|
13
|
15
|
6
|
9
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Desktop Metal, Inc. | 287 |
9 |
| IHI Corporation | 3449 |
7 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
6 |
| Carbicrete Inc. | 67 |
5 |
| Eth Zurich | 1283 |
4 |
| Hewlett-Packard Development Company, L.P. | 25850 |
3 |
| Amann Girrbach AG | 74 |
3 |
| PARKER NETSUSHORI KOGYO Co., Ltd. | 35 |
3 |
| Ikoi S.p.A. | 21 |
3 |
| Mantle Inc. | 32 |
3 |
| Tokyo Electron Limited | 12795 |
2 |
| ASM IP Holding B.V. | 2092 |
2 |
| Fives Ecl. | 23 |
2 |
| Hirata Corporation | 353 |
2 |
| Kunming Diboo Technology Co., Ltd. | 7 |
2 |
| Kunming University of Science and Technology | 185 |
2 |
| Quintus Technologies AB | 67 |
2 |
| S-tech Co., Ltd. | 20 |
2 |
| William R. Jones | 3 |
2 |
| Laser Engineering Applications | 26 |
2 |
| Other owners | 75 |